Hi guys. I recently posted to discuss on switching signals. I have resolved that. Now, Im trying to switch a DC voltage/current. Say Im supply a DC stable bias current of about 40 mA. If I want to switch it off at certain time interval, maximum of 40 us. Which means, the maximum pulsewidth of the control pulse will be 40 us. After 40 us, I don't want any direct current to go through the switch. Can anyone suggest a switching IC operates at this region? I googled it, and I dont seem to get a right answer. Any advice please?